CVE-2025-34253 D-Link Nuclias Connect <= v1.3.1.4 Stored Cross-Site Scripting (XSS)
An authenticated attacker can inject arbitrary JavaScript into network configuration fields, leading to script execution in other users' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-34253?
CVE-2025-34253 is a medium-severity cross-site scripting vulnerability in D-Link Nuclias Connect, published on 16 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain a stored cross-site scripting (XSS) vulnerability due to improper sanitization of the 'Network' field when editing the configuration, creating a profile, and adding a network. An authenticated attacker can inject arbitrary JavaScript to be executed in the context of other users viewing the profile entry. NOTE: D-Link fixed this issue in version 1.3.1.5.
Weakness: CWE-79
Which versions are affected by CVE-2025-34253?
It affects 1 product.
Products include Dlink Nuclias Connect.
How do I fix CVE-2025-34253?
No fix has been published for CVE-2025-34253 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-34253 being exploited?
There is no known exploitation of CVE-2025-34253 in the wild and no public exploit code.
Other vulnerabilities in D-Link Nuclias Connect
Sources
Also known as GHSA-c272-737g-r85g.